FLV player w/ youtube playlist crashes

My video player works fine until I click on one of my newer youtube videos which makes my Firefox 3.5.5 crash.

Can someone please help?

.xml playlist:

<?xml version="1.0" encoding="UTF-8"?>
<playlist version="1" xmlns="http://xspf.org/ns/0/">
<trackList>
<track><title>Dex Beats Trailer</title><location>http://www.youtube.com/watch?v=ormNGFkMcFQ</location></track>
<track><title>Dex Beats Meets The Jacka</title><location>http://www.youtube.com/watch?v=5ptW9Su9wHI</location></track>
<track><title>Dex Beats Meets The Jacka pt. 2</title><location>http://www.youtube.com/watch?v=PtpumkBJcds</location></track>
<track><title>"STASH" Bailey ft. Ya Boy </title><location>http://www.youtube.com/watch?v=OK5lViRfNzg</location></track>
<track><title>Dex Beats at BAPC showcasing beats</title><location>http://www.youtube.com/watch?v=cpXkV2pRLM8</location></track>
<track><title>Bailey & Dex Beats vlog #1</title><location>http://www.youtube.com/watch?v=LmYMgV7qrBE</location></track>
<track><title>Bailey, YaBoy & Dex Beats vlog#2</title><location>http://www.youtube.com/watch?v=uHcXE7WObkw</location></track>
<track><title>Dex's Laboratory (37Hundred)</title><location>http://www.youtube.com/watch?v=0h9Gxcvy_W4</location></track>
<track><title>Dex Beats' Scokland plug</title><location>http://www.youtube.com/watch?v=eh0FDs-Xr50</location></track>
<track><title>Mistah Fab freestyling over DexBeats c/o STASH</title><location>http://www.youtube.com/watch?v=xd4oggzxVsI</location></track>
<track><title>Smoke Session w/ Jacka pt.1 over DexBeats c/o STASH</title><location>http://www.youtube.com/watch?v=B1YJjlPJw8c</location></track>
<track><title>Air it Out w/ Mistah Fab over DexBeats c/o STASH</title><location>http://www.youtube.com/watch?v=ncJoDqKJTwo</location></track>
<track><title>Smoke Session pt.2 w/ Jacka over DexBeats c/o STASH</title><location>http://www.youtube.com/watch?v=4_Czl82BMa0</location></track>
<track><title>Air it Out w/ Mistah Fab over DexBeats c/o STASH</title><location>http://www.youtube.com/watch?v=W1W0fU8pIKQ</location></track>
<track><title>Air it Out w/ Mistah Fab over DexBeats c/o STASH</title><location>http://www.youtube.com/watch?v=GMA79CQN3jE</location></track>
<track><title>Smoke Session w/ Jacka pt. 3 c/o STASH</title><location>http://www.youtube.com/watch?v=uCIwyPOu5RU</location></track>
<track><title>Smoke Session w/ Jacka pt. 4 c/o STASH</title><location>http://www.youtube.com/watch?v=zsW8UFf0rtA</location></track>

</trackList>
</playlist>

my embed code:

<embed
src="http://www.groundworkproductions.com/dexbeats/video/video.swf"
width="320"
height="500"
allowscriptaccess="always"
allowfullscreen="true"
flashvars="height=500&width=320&file=http://www.groundworkproductions.com/dexbeats/video/video.xml&backcolor=0x000000&frontcolor=0xFFFFFF&lightcolor=0x333333&displayheight=240&autoscroll=false&thumbsinplaylist=false&autostart=true"
/>

The player is on dexbeats.com